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Ingredients

Ingredient Dictionary

2,6-DIHYDROXY-3,4-DIMETHYLPYRIDINE

Molecular structure

Definition

US FDA substance register · UNII 3VDO3A5MTW · registered name 2,6-DIHYDROXY-3,4-DIMETHYLPYRIDINE · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Dyes hairHAIR DYEING

Safety & regulatory references

Banned
South Korea
Restricted
Taiwan · United Kingdom

Source: MFDS (Korea) cosmetic regulatory information · ASEAN Cosmetic Directive · EU Cosmetics Regulation · Taiwan FDA cosmetic ingredients · Taiwan FDA cosmetic regulations · UK cosmetics regulations (OPSS)

ASEAN

  • Field of application and/or use : Hair dye substance in oxidative hair dye products. Use for dyeing eyelashes and eyebrows is not permitted.
  • Other limitations and requirements : After mixing under oxidative conditions the maximum concentration applied to hair must not exceed 1.0% The direction for use “wear suitable gloves” must be included in label or leaflet text.
  • Conditions of use and warning which must be printed on the labels : The mixing ratio must be printed on the label. Hair colorants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary “black henna” tattoos may increase your risk of allergy. Do not colour your hair if: • you have a rash on your face or sensitive, irritated and damaged scalp, • you have ever experienced any reaction after colouring your hair, • you have experienced a reaction to a temporary “black henna” tattoo in the past Do not use to dye eyelashes or eyebrows

European Union

  • Product Type, body parts : Hair dye substance in oxidative hair dye products
  • Other : After mixing under oxidative conditions the maximum concentration applied to hair must not exceed 1,0 %
  • Wording of conditions of use and warnings : To be printed on the label: The mixing ratio. “ Hair colourants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary ‘black henna’ tattoos may increase your risk of allergy. Do not colour your hair if: — you have a rash on your face or sensitive, irritated and damaged scalp, — you have ever experienced any reaction after colouring your hair, — you have experienced a reaction to a tempor

Source: MFDS (Korea) cosmetic regulatory information

EU Cosmetics Regulation, Annex III (restricted substances), entry 218 · applies to Hair dye substance in oxidative hair dye products

Source: EU restricted substances (Annex III)

Restriction III/218 · SCCS opinion: Opinion on 2,6-Dihydroxy-3,4-dimethylpyridine

Source: EU CosIng ingredient list

More data — names, identifiers, properties, test records, literature

Names & identifiers

2,6-DIHYDROXY-3,4-DIMETHYLPYRIDINEINCI2,6-다이하이드록시-3,4-다이메틸피리딘Korean label name (MFDS standard)
CAS No.chemical registry number
84540-47-6
EC No.EU chemical inventory number
283-141-2
DTXSIDUS EPA chemical ID
DTXSID50233528
DTXCIDUS EPA compound ID
DTXCID80156019
IUPAC
6-Hydroxy-3,4-dimethylpyridin-2(1H)-one
Molecular formula
C7H9NO2
Molecular weight
139.154 g/mol

What products actually use it for

What the 1 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.

  • Dye1

Source: US EPA CompTox dashboard

Linked databases 16